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Stare at a tide pool and you will often see a crust of pink coating the bottom. No, this is not bubblegum from some careless teenager’s shoe: it’s a stony kind of seaweed that, like other seaweeds,...
The Hawaii Undersea Research Laboratory’s Pisces V submersible is lowered for a dive to study deep-sea corals. Learn more about research into deep-sea corals in the multimedia feature " Coral Gardens...
Several species of deep-sea corals form a garden 165 m (540 ft) below the ocean’s surface off the coast of Alaska’s Aleutian Islands. Explore more in the multimedia feature " Coral Gardens of the...
A variety of corals colonize the rocky surface of Manning Seamount, part of the New England Seamount Chain located in the Atlantic Ocean just off the coast of Cape Cod, Massachusetts. This photo was...
Reef sharks rarely get any love. These sharks, comprising several species, loiter around coral reefs, snacking on small fish, squids and crustaceans. And while their size is nothing to smirk at—5-10...
Sample the surprising diversity of deep-sea corals. See some of the ways they differ in color, shape, and size. Explore more in the multimedia feature " Coral Gardens of the Deep Sea ."
Visitors to the Hyperbolic Crochet Coral Reef temporary exhibit at Smithsonian’s National Museum of Natural History saw both the main installation created by to the Institute For Figuring and the...
When he was 10 years old, Stephen Cairns lived in Cuba where he kept a collection of butterflies and sea shells. When his family moved to Louisiana, he could bring only one of the collections with...
I still haven’t gotten beyond the ‘gee whiz’ factor of studying communities of animals in deep-sea coral habitats. Climbing over undersea mountains and along the steep cliffs of submarine canyons...
A squat lobster and blackbelly rosefish find shelter on a Lophelia pertusa coral reef off the southeastern United States. The Johnson-Sea-Link submersible captured this image in 2009. Explore more in...
Ocean acidification is sometimes called “climate change’s equally evil twin,” and for good reason: it's a significant and harmful consequence of excess carbon dioxide in the atmosphere that we don't...
Branching corals, because of their more fragile structure, struggle to survive in acidified waters that surround the volcanic CO 2 seeps of Papua New Guinea. Read more about how reef scientist...
Inside the control van for the remotely operated vehicle (ROV) Jason , Dr. Brendan Roark and colleagues watch the ROV collecting deep-sea coral specimens. No scientists dive down with their ROV, so...
A variety of organisms make their home on this tropical coral reef in Indonesia. More about coral reef ecosystems can be found in the Coral Reefs section .
Views of each sonar beam appear on the left side of this computer screen image while the path being mapped by the ship appears on the right. These 3-D color images enable ocean scientists to locate...
Last September, the Citizens of the Sea blog series brought you a story of doom and gloom from the reefs of Bocas del Toro, Panama. That is the time of year we typically study -- and celebrate -- the...
Each month, the Naked Oceans podcast invites a leading marine researcher to pick the "critter of the month" by asking: if you were a marine organism, which one would you be? This month, Dr. Nancy...
Dr. Amy Baco-Taylor observed corals like these on her first submarine dive to a deep-sea coral bed off the coast of Hawaii. They include primnoids, zoanthids, and Gerardia . The high density and...
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